108971105489 has 4 divisors (see below), whose sum is σ = 109008853824. Its totient is φ = 108933357156.

The previous prime is 108971105471. The next prime is 108971105501. The reversal of 108971105489 is 984501179801.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-108971105489 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 108971105489.

It is not an unprimeable number, because it can be changed into a prime (108971105389) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18869837 + ... + 18875610.

It is an arithmetic number, because the mean of its divisors is an integer number (27252213456).

Almost surely, 2^108971105489 is an apocalyptic number.

It is an amenable number.

108971105489 is a deficient number, since it is larger than the sum of its proper divisors (37748335).

108971105489 is an equidigital number, since it uses as much as digits as its factorization.

108971105489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37748334.

The product of its (nonzero) digits is 725760, while the sum is 53.

The spelling of 108971105489 in words is "one hundred eight billion, nine hundred seventy-one million, one hundred five thousand, four hundred eighty-nine".